Mauna Loa, World’s Largest Volcano, Erupting In Hawaii

Mauna Loa, the world’s largest active volcano, is now spewing molten lava and raining ash near the top of Hawaii’s Big Island. NBC News’ Steve Patterson has more details on what scientists are saying about the first eruption in four decades. » Subscribe to NBC News: » Watch more NBC video: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features , , , Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! NBC News App: Breaking News Alerts: Visit : Find NBC News on Facebook: Follow NBC News on Twitter: #NBCNews #Hawaii #Volcano